Old Exam Papers June 2012 (Set 2)

(v) Melting point of chromium is the highest among the
le>kb;s %
3d metals.
(i) Cu+ vk;u jaxghu rFkk Cu++ vk;u jaxhu gksrs gSa
(ii) laØe.k /kkrq,¡ ladqyksa dk fuekZ.k djrh gSa
(iii) izfrpqEcdh; vk;u jaxghu gksrs gSa
25
(iv) laØe.k rÙoksa esa fuEure vkWDlhdj.k voLFkk dk vkpj.k
lcls vf/kd /kkfRod ,oa mPpre vkWDlhdj.k voLFkk
dk lcls de /kkfRod gksrk gSA
(v) 3d /kkrqvksa esa Øksfe;e dk xyukad lcls vf/kd gksrk
gS
25
2. Explain the following properties of elements of second and
third transition series :
(i) Oxidation states
(ii) Complexation
f}rh; rFkk r`rh; laØe.k Js.kh ds rÙoksa ds fuEu xq.kksa dh
O;k[;k dhft;s %
(i) vkWDlhdj.k voLFkk,¡
(ii) ladqyu
200 2 CH-05
10
10
9. What are non-aqueous solvents ? Describe types of
reactions taking place in liquid ammonia as a solvent. 10
vEyh; foyk;d D;k gksrs gSa \ nzo veksfu;k esa foyk;d ds :i
esa gksus okyh vfHkfØ;kvksa dk o.kZu dhft;sA 10
10. Discuss the various reactions occurring in liquid hydrogen
fluoride. 10
nzo gkbMªkstu yksjkbM esa lEiUu gksus okyh fofHkUu vfHkfØ;kvksa
dk o.kZu dhft;sA 10
CH-05 5 200